Power system.



I PATENTED MAY 28 1907. G. Y. BONUS.

POWER SYSTEM.

APPLIOATION FILED 113.13, 1905.

ua'nos ya .Zzzrenio'r 460576}. 0n as citizen of the United States,residing at Chi- UNITED STATES rATENT OFFICE.

POWER SYSTEM.

Specification of Letters Patent.

' Patented. May 28, 1907.

Application filed February 13, 1905. Serial No. 245,621.

T 0 all whom it vim/y concern:

Be it known that I, GEORGE Y. Bonus, a.

cage, in the county of Cook and State of Illinois, have invented a newand useful Power- Economizing System, of which the following is aspecification.

.\Iy invention relates to power systems in which water is converted intosteam and the steam pressure used to drive any kind of a steam motor;and the objects of my improvements are, first, ,to provide a compoundengine having the area of one of its pistons at least seven or moretimes the area of the other piston; second, to pass the exhaust steamfrom a plurality of-engines into the cylinder having the large piston;third, to superheat the steam from one or more exhausts before passingit to the engine; fourth, to utilize the hot gases coming from thefurnace to heat water and steam; fifth, to'utilize the hot gases comingfrom the furnace to heat the draft air from the furnace, about as shownand other objects which will become apparent from the description tofollow.

gleretofore compound engines have been made, but with the larger pistonof such size with relation to the smaller piston that only the exhauststeam from the one cylinder containing the small piston could be used insaid large cylinder. The exhaust steam was delivered to the largecylinder direct from the small cylinder without being superheated. Thehot gases from the furnace after passing through the boiler werepermitted to be wasted by passing directly into the chimney.

By my improved construction and arrangement of arts I utilize what maybe considered all t 1e available heat created by the furnace or fireunder the boiler, and the low pressure steam is superheated beforeentering the low pressure cylinder. This permits of a much larger areaof difference between the high pressure cylinder and the low pressure;and the larger the low pressure cylinder is the greater will the vacuumarea be and therefore also the economy increased.

.\Iy system also provides for heating water or other matters by theexhausts of the .sev-

eral small engines.

\Vhile I have shown and will describe a number of devices in combinationto attain the objects of my invention, I desire to have it understoodthat not all of the devices shown are necessarily required to comewithin the scope of my invention as will be particularly pointed out inthe appended. claims.

In the drawing forming a part of this specification I illustrate a highpressure boiler, a low pressure boiler, a plurality of high ressurecylinders, a low pressure cylin er a draft heater, and a steamsuperheater connected and arranged to give the most economical results.

Similar reference characters refer to similar parts throughout.

The boiler 1, is shown as being a water tube boiler, and is shown asbeing provided with an under feed. stoker 2, operated by the.

steam cylinder 3, although any style of fire place and grate may beprovided. I preferably employ a forced draft for the furnace,

fire throu l1 the duct 4 by means'of the fan 5- which is riven by thesteam engine 6. To the suction side of the fan 5-is connected an airduct 7 which leads to the air heater 8. The heater 8-is a sheet metalboiler provided with a plurality of tubes 9 through which the hot gasesfrom the fire under the boiler 1 pass before passing out through thechimneylO; and is also provided with a plurality of inlet openings 11.for the admission of outside air intosaid heater 8.

The water inside of the boiler 1 and 13 is kept at the proper level bythe ordinaryboiler pump 12, being regulated to each by proper valves.Preferably between the draft heater 8 and the boiler 1 is placed a lowpressure boiler 13 provided with a plurality of tubes 14 through whichthe hot gases coming from the fire under the boiler 1 pass before assingthrough the tubes 9 in the heater 8. ithin the hot gases fiues about theboiler 1 is provided a steam superheater 15.

The live steam under high pressure from boiler 1 is led through pipe 16to the compound engine 17 which is provided with the high pressurecylinder 18 and the low pressure cylinder 19. 19 is preferably seven ormore times as large as the high pressure cylinder 18. The ex- The lowpressure cylinder IOO haust steam from the low pressure cylinder 19 ispreferably passed into a condenser 20, from whence the water is pumpedback into the boiler 1 through the pipe 22 by the pump 12. Steampressure from the boiler 1 is supplied to the engine 6 through thebranch 23 to the cylinder 3 through the branch 24; to

the condenser pump cylinder 25 through the branch 20; and to the boilerpump 12 through the branch 27. The exhaust steam from the compoundengine cylinder 18 is led directly into cylinder 19, but the exhaustsfrom all the remaining cylinders are led through pipe 28 into the lowpressure boiler 13, from this it passes through the pipe 29, through thesteam superheater i5 and then finally through the pipe 30 into thecylinder 19 of the compound engine, joining the exhaust from thecylinder 18 in the enlargement 31 of the pipe 30 adjacent to thecylinder 19. Instead of taking this course, the exhaust steam from thecompound engine cylinder 18 may pass through the superheater 15 with allthe exhausts and thence into the cylinder 19; or all the exhausts maypass directly into the superheater 15 instead of first passing into theboil r 13.

The pipe 2&1 is connected between boiler 13 and engine 6, and is conected to cylinder 3 by the branch 32; to the condenser cylinder 25 bythe branch 33; and to the cylinder of pump 12 by the branch 34. a

It will be seen that by the use of this system practically all the heatcreated by the fire under the boiler is used to advantage and the steamis so manipulated through the different apparatus as to give the mosteflicient result.

in operation the fire under the boiler 1 is supplied with heated freshair through the duct 4 by the fan 5 the hot gases from the pass throughthe flues of the boiler 1,

. thence they pass through the fines of'thc low pressure boiler 13, andthence through the flues of the draft air heater 8 and finally outthrough the chimney 10. The steam generated. in the boiler 1 is led tothe different engines through the pipe 16 and its tributaries. Theexhaust from the different engines is led into the low pressure boiler13 and from thence through the superheater 15, after which it may be ledinto the low pressure cylinder 19 of the engine 17 or out to a heater toheat water for boiler feeds.

The exhaust from the low pressure cylinder 19 is condensed by anydesired form of condenser 20, and the water stored in a hot well 21 fromwhich it is pumped into the boiler I l laying thus fully described myinvention what I claim as new and desire to secure by Letters Patent ofthe United States is In a power economizing system, a source of steamsupply, a plurality of engines one of which is a compound engine, asteam supcrheater and connections whereby the i l i.

exhaust steam from all engines except the compound engine is led throughsaid superheater and thence with the exhaust from the high pressurecylinder of said compound engine to the low pressure cylinder of saidcompound engine.

2. in a power economizing system, a high pressure boiler, a low pressureboiler, a steam superheater, a furnace for heating said two boilers andsaid superhmltcr, a plurality of engines-one of which is a compoundengine. and connections whereby the exhaust steam from all enginesexcept the compound engine is led to the low pressure boiler, thencethrough said steam superheater and "with the exhaust from the highpressure cylinder of the compound engine to the low pressure cylinder ofthe compound engine.

3. In a power economizing system, a high pressure boiler, a steamsuperheater, a. furnace for heating said boiler and said superheater, aplurality of engines one of which is a compound engine and connectionswhereby the exhaust steam from all engines except the compound engine isled through said superheater and thence together with the exhaust fromthe high pressure cylinder of the compound engine to the low pressurecylin der of said compound engine.

4. In a power economizing system, pressure boiler, a plurality ofengines one of which is a compound engine, a steam supcrheater andconnections whereby the exhaust steam from all engines except thecompound engine is led through said superheater and thence together withthe exhaust from the igh pressure cylinder of the com )ound engine tothe low pressure cylinder 0 said compound engine.

n a power economizing system, a high pressure boiler, a low ressureboiler, a plurality of engines one 0 which is a compound engine, a steamsuperheater and connections whereby the exhaust steam from all enginesexcept the compound engine is led to the low pressure boiler, thencethrough the said steam superheater and together with the exhaust steamfrom the high pressure cylinder of the compound engine to the lowpressure cylinder of said compound engine.

In a power economizing system, a high pressure boiler, a compound enginefor fur nishing power, an engine for operating the furnace stoker, anengine for operating the feedwater pump, a steam superheater andconnections whereby the exhaust steam from the two last named engines isled through said superheater and thence together with the exhaust steamfrom the high pressure cylinder of said compound engine to the'lowpressure cylinder of said compound engine.

In a power economizing system, a high pressure boiler, a low pressureboiler, a steam superheater, a furnace for heating said two boilers andsaid steam superheatci', a comound engine for furnishing power, anengine or operating the furnace stoker, an engine for operating the feedwater pump, and connections whereby the exhaust steam from led throughthrough said a high the two last named engines is said low pressureboiler, thence I in,

I compound engine to the low pressure cylinsuperheater and together withthe exhaust} two subscribing Witnesses this 11th day of steam from thehigh pressure cylinder of the 1 November 1903 at Cl1icago,1llinois.

GEORGE Y. BONUS.

der of the com ound engine, to the low pressure cylinder 0 i saidcompound engine. i Witnesses:

In testimony whereof I have signed my 1 R. J. JACKER,

(.3. L. CRoss.

name to this specifieation in the presence of i

